IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2013  > Vol10 No.6
Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh
Md. Rafiqul ISLAM; Mohammed Omar FARUQUE
Corresponding AuthorMd. Rafiqul ISLAM
2013-12
Source PublicationJournal of Mountain Science
Volume10Issue:6Pages:976-986
AbstractThe present study reflects upon the results of substantial program of two-dimensional Finite Element Method (FEM) numerical analyses of the open pit that links to slope angle optimization associated with the safety factor of the pit slope of a coal mine in Bangladesh. In the present analyses, two types of models have been presented. The first model estimates safety factor without seismic effect on the overall pit slope of the model; the second model incorporates safety factor with seismic stability of the model. The calculated optimum slope angle of the first model is 31o with a rational safety factor of 1.51, prior to the seismic effect. However, the value is reduced to 0.93, 0.82, and 0.72, after we applies the seismic effect in the second model with M6, M6.5, and M7, respectively. Finally, our modeling results emphasize that for the case of the proposed Phulbari coalmine, there is extremely high prospect for causing massive slope failure along the optimum pit slope angle with 31o if the mine area felt seismic shaking, like the Sikkim (in northern India) earthquake with M6.9 on September 18, 2011.
KeywordOpen Pit Coalmine Optimum Slope Angle Safety Factor Seismic Stability
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6527
CollectionJournal of Mountain Science_Journal of Mountain Science-2013_Vol10 No.6
Corresponding AuthorMd. Rafiqul ISLAM
Recommended Citation
GB/T 7714
Md. Rafiqul ISLAM,Mohammed Omar FARUQUE. Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh[J]. Journal of Mountain Science,2013,10(6):976-986.
APA Md. Rafiqul ISLAM,&Mohammed Omar FARUQUE.(2013).Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh.Journal of Mountain Science,10(6),976-986.
MLA Md. Rafiqul ISLAM,et al."Optimization of Slope Angle and Its Seismic Stability: A Case Study for the Proposed Open Pit Coalmine in Phulbari, NW Bangladesh".Journal of Mountain Science 10.6(2013):976-986.
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